LATEST NEWS: Cring #ransomware recently made headlines due to a recent attack that exploited a bug in the 11-year-old version of the Adobe ColdFusion 9 software. Follow this thread and let’s look at the techniques typically wielded by this ransomware.

👇 👇 👇 [1/5] Image
[2/5] #Cring ransomware gains initial access through unsecure remote desktop protocol (RDP) or through unpatched vulnerabilities. Image
[3/5] The threat also abuses tools such as #Mimikatz for credential access and Cobalt Strike for lateral movement. More details on how these tools are abused for ransomware attacks:
research.trendmicro.com/3hYEMkT
[4/5] We detect Cring ransomware as Ransom.MSIL.CRYNG.A: trendmicro.com/vinfo/us/threa…
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We also detect another variant of the ransomware as Ransom.Win32.CRING.C: trendmicro.com/vinfo/us/threa…
[5/5] To defend systems against ransomware, organizations must employ a proactive approach that involves patching vulnerabilities and monitoring systems for suspicious behavior:

research.trendmicro.com/3CFkll3

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More from @TrendMicroRSRCH

23 Sep
[1/5]

LATEST NEWS: Both @CISAgov and @FBI just released an advisory on #Conti #ransomware, which they’ve recently observed being used to attack US and international organizations.

Learn more about Conti’s attack chain and tactics here 👉 research.trendmicro.com/3lOTxrx Image
[2/5]

#Conti operators use several methods to gain initial access like spear phishing and exploiting public-facing applications, followed by the use of Cobalt Strike. We investigated how Conti #ransomware operators used Cobalt Strike to launch attacks: research.trendmicro.com/3CDba4C Image
[3/5]

Aside from Cobalt Strike, #Rclone is another legitimate tool abused by Conti operators in their previous campaigns. We discuss some of the most commonly abused legitimate tools here 👉 research.trendmicro.com/2W8cNaS Image
Read 5 tweets
6 Aug
— A THREAD —

[1/n] We’re monitoring developments on a new piece of proof-of-concept #ransomware called #Chaos. It’s purportedly a .NET version of #Ryuk, but our analysis shows that its routines are different from Ryuk’s. Image
[2/n] Earlier versions of #Chaos were actually destructive #trojans that overwrote rather than encrypted files, which meant that victims had no way of restoring their files to their original state. Image
[3/n] The third version of #Chaos was traditional #ransomware, having the ability to encrypt files via RSA/AES and also providing a decrypter. With this version, the creator asked for donations to support the ongoing development of Chaos. Image
Read 8 tweets

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